charts_set_9
... Shapley used distances to Globular Clusters to determine that Sun was 16 kpc from center of Milky Way. Modern value 8 kpc. ...
... Shapley used distances to Globular Clusters to determine that Sun was 16 kpc from center of Milky Way. Modern value 8 kpc. ...
The H-R Diagram
... to 108 solar density. They have exhausted all of their nuclear fuel, are no longer generating energy, and are at the end of the stellar evolution cycle. They are contracting and cooling and will eventually become "black dwarfs", emitting less and less energy. ...
... to 108 solar density. They have exhausted all of their nuclear fuel, are no longer generating energy, and are at the end of the stellar evolution cycle. They are contracting and cooling and will eventually become "black dwarfs", emitting less and less energy. ...
chapter10
... The Final Breaths of Sun-Like Stars: Planetary Nebulae Remnants of stars with ~ 1 – a few Msun Radii: R ~ 0.2 - 3 light years Expanding at ~10 – 20 km/s ( Doppler shifts) Less than 10,000 years old ...
... The Final Breaths of Sun-Like Stars: Planetary Nebulae Remnants of stars with ~ 1 – a few Msun Radii: R ~ 0.2 - 3 light years Expanding at ~10 – 20 km/s ( Doppler shifts) Less than 10,000 years old ...
Chapter 16 Lesson 2: What is a Star
... Ribbons of gas called prominence leap out of the chromosphere that can also erupt like a volcano. 1. This is a solar flare which can last for minutes or hours. V. The Life of Stars a. New stars form in a nebula which is a cloud of dust and gas pulled together by gravity. 1. The temperature rises, hy ...
... Ribbons of gas called prominence leap out of the chromosphere that can also erupt like a volcano. 1. This is a solar flare which can last for minutes or hours. V. The Life of Stars a. New stars form in a nebula which is a cloud of dust and gas pulled together by gravity. 1. The temperature rises, hy ...
Stars and their Properties
... Nearest stars to the Earth are a couple hundred thousand time the distance between the Sun and the Earth There is a limit to how far out you can use Parallax (100 parsecs) Professional astronomers do not use light years to measure distance Parsec (pc) – Parallax arc second – A star is so far away so ...
... Nearest stars to the Earth are a couple hundred thousand time the distance between the Sun and the Earth There is a limit to how far out you can use Parallax (100 parsecs) Professional astronomers do not use light years to measure distance Parsec (pc) – Parallax arc second – A star is so far away so ...
life and death of a high mass star 2
... AFTER THAT, THEY LOSE THEIR MASS AND HEAT AND BEGIN TO DIE. THIS PROCESS TAKES BILLIONS AND BILLIONS OF YEARS. ...
... AFTER THAT, THEY LOSE THEIR MASS AND HEAT AND BEGIN TO DIE. THIS PROCESS TAKES BILLIONS AND BILLIONS OF YEARS. ...
Document
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
MSci Astrophysics 210PHY412
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
Sun and Stars
... nuclear fusion in its core. This nuclear fusion releases energy which travels through the star's different layers and then radiates into outer space. ...
... nuclear fusion in its core. This nuclear fusion releases energy which travels through the star's different layers and then radiates into outer space. ...
Chapter13
... dwarfs are found in the lower left corner of the HertzsprungRussell diagram. The more massive a white dwarf, the smaller it is! ...
... dwarfs are found in the lower left corner of the HertzsprungRussell diagram. The more massive a white dwarf, the smaller it is! ...
Life of stars, formation of elements
... of near side of dense cloud. • Many more similar starformation regions buried deep inside cloud. ...
... of near side of dense cloud. • Many more similar starformation regions buried deep inside cloud. ...
WEBDA - a tool for CP star research in open clusters
... Abstract. WEBDA (http://www.univie.ac.at/webda) is a site devoted to stellar observational data, such as chemically peculiar stars, in stellar clusters in the Milky Way and the Small Magellanic Cloud. It is intended to provide a reliable synthesis of the available data and knowledge about these obje ...
... Abstract. WEBDA (http://www.univie.ac.at/webda) is a site devoted to stellar observational data, such as chemically peculiar stars, in stellar clusters in the Milky Way and the Small Magellanic Cloud. It is intended to provide a reliable synthesis of the available data and knowledge about these obje ...
Ch.1, Sec.3 - Mapping the Stars
... When you put those numbers together, you get an estimate of 1024 stars in the entire Universe or a 1 followed by 24 zeroes (called one septillion)! That’s 1,000,000,000,000,000,000,000,000 stars or more than all the combined grains of sand on planet Earth!!!! ...
... When you put those numbers together, you get an estimate of 1024 stars in the entire Universe or a 1 followed by 24 zeroes (called one septillion)! That’s 1,000,000,000,000,000,000,000,000 stars or more than all the combined grains of sand on planet Earth!!!! ...
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin
... 16. Explosive thermonuclear processes on white dwarfs and neutron stars produce novae and bursters. Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an u ...
... 16. Explosive thermonuclear processes on white dwarfs and neutron stars produce novae and bursters. Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an u ...
Friday, April 25 - Otterbein University
... • “yard-sticks” for distance measurement • Cepheids in Andromeda Galaxies established the “extragalacticity” of this “nebula” ...
... • “yard-sticks” for distance measurement • Cepheids in Andromeda Galaxies established the “extragalacticity” of this “nebula” ...
The Life Cycle of Stars Webquest
... Continue to read on to the section “A Nuclear Furnace” on the same webpage http://www.seasky.org/cosmic/sky7a01.html and answer the following questions: 1. The nuclear reactions inside a star, such as our sun, convert hydrogen into helium by means of a process known as. 2. What gives a star its ener ...
... Continue to read on to the section “A Nuclear Furnace” on the same webpage http://www.seasky.org/cosmic/sky7a01.html and answer the following questions: 1. The nuclear reactions inside a star, such as our sun, convert hydrogen into helium by means of a process known as. 2. What gives a star its ener ...
Galaxy Far Far Away ppt
... HALO: Area surrounding galaxy that contains some scattered globular clusters. DISK: Contains most of the stars in the galaxy. ...
... HALO: Area surrounding galaxy that contains some scattered globular clusters. DISK: Contains most of the stars in the galaxy. ...
What are stars? - Manhasset Schools
... A giant’s core will continue to contract and become hotter. When it uses up all its helium, it contracts even more. When the temperature reaches 100 million K, helium fuses, forming carbon. Now the star is enormous and its surface is much cooler. Its outer layers escape into space leaving behind a ...
... A giant’s core will continue to contract and become hotter. When it uses up all its helium, it contracts even more. When the temperature reaches 100 million K, helium fuses, forming carbon. Now the star is enormous and its surface is much cooler. Its outer layers escape into space leaving behind a ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.